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Switzerland ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT) precisely 20 years ago. To mark the occasion, Federal Councillor and Head of the FDFA Ignazio Cassis met with the Executive Secretary of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), Lassina Zerbo, in Bern. During the meeting, Mr Cassis emphasised the CTBT’s indispensable role in building a world without nuclear weapons. The CTBTO works closely with scientific institutions, including the Swiss Seismological Service at ETH Zurich in Davos, to monitor compliance with the ban. These monitoring activities are also an example of how science and diplomacy can work together to solve political problems.

Federal Councillor Ignazio Cassis and CTBTO Executive Secretary Lassina Zerbo talk about nuclear weapons on a balcony of the Federal Palace.
The Federal Council supports the goal of a world without nuclear weapons and is therefore committed to the CTBT. © Keystone

Last update 28.01.2022

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